Nenad Zivkovic

Air quality monitoring in NIS (SERBIA) and health impact assessment

The aim of this study is to indicate the significance of air quality monitoring and to determine the air quality fields for the assessment of air pollution health effects, with special attention to risk population. Radial basis function network was used for air quality index mapping. Between 1991 and 2005, on the territory of Nis, several epidemiological studies were performed on risk groups (pre-school children, school children, pregnant women and persons older than 65). The total number of subjects was 5837. The exposed group comprised individuals living in the areas with unhealthy AQI, while the control group comprised individuals living in city areas with good or moderate AQI. It was determined that even relatively low levels of air pollution had impact on respiratory system and the occurrence of anaemia, allergy and skin symptoms.

Le Fort type 3 fracture or not

Axial non-contrast CT scan is the standard technique in patients with head and/or face injury. The three dimensional CT imaging reconstruction is becoming a gold standard in trauma of maxillofacial region enabling a clear perception of fracture lines and resulting displacement of fracture fragments. Le Fort fractures are fractures of the midface. In Le Fort type 3 fracture the craniofacial disjunction is present. A 91-yearold female had a mild facial trauma as a result of accidental fall. Axial CT scan showed artifacts, but three dimensional CT imaging reconstruction showed typical Le Fort type 3 fracture. Since clinical and 3D CT reconstruction finding were in complete contradiction, we repeated CT scan, which showed normal finding. This case is shows that in an era of incredible progress of neuroradiology, clinical examination still remains the best diagnostic tool.

Demographic changes and processes in Negotin municipality settlement network

The analysis of demographic factors of the studied area points to the different demographic development models. Uneven economic and regional development of industry caused the regional demographic polarization of the population of Negotin municipality. In relatively short period, the transition has caused spontaneous urbanization and deagrarization. All that influenced the faster tempo of social and demographic processes, especially the migrations towards Negotin, which led to the developmental unevenness and regional polarization to the zone of population concentration (town and the suburban areas). Contrary to the town center, there are depopulation rural areas, with outstanding economic undevelopment.